How do aquaponics systems work and what are their benefits?

Aquaponics is a sustainable system of farming that uses the combination of raising fish and plants. The system works by using the fishes' waste to feed the plants, and in return, the plants clean the water for the fish to live in. The process starts with a fish tank, where the fish are raised, and their excretions produce ammonia, which can be toxic to the fish. However, the water is pumped to a plant bed, where bacteria will convert ammonia into nitrites and finally into nitrates, which are nutrients for the plants.

The plants absorb the nutrients and filter the water, which is then pumped back to the fish tank, clean and oxygenated for the fish's survival. The system creates a closed-loop system that maintains an equilibrium between the fish, plants, and bacteria.

The benefits of aquaponics systems are numerous. Firstly, it saves water since the same water is used repeatedly in the system, compared to traditional farming where water is lost through evaporation and runoff. Secondly, it's a sustainable system with low energy consumption and no harmful emissions. Additionally, the system provides both protein and vegetables, making it a sustainable source of food. Finally, it's a scalable system that can be used in both personal and commercial settings.